Trainee accountant Stuart Harling was obsessed with an ultra-violent video game, and in 2006 he stabbed nurse Cheryl Moss 70 times. A-level student Steven Miles watched nothing but 'Dexter', and in 2014 he dismembered his girlfriend. Aaron Roach Bridgeman speaks to experts who were associated with the cases. Can any connection be proven between extertainment and action?
